I'll get the ball rolling: Superman: Superman vs Doomsday, first time. Gotta love it, Superman taking the gloves off and killing the unkillable. Superman vs (the actual) Zod. Yes! Finally the rematch I've been waiting for since Superman II. "I am hell! I am ZOD!" Superman vs Qurac. I like the idea of Superman totally pwning a country just for kicks. It's pretty neat. Superman vs Darkseid. after Kara's 'death'. Don't care what the haters say, this fight ruled. Batman: Batman vs The Joker. After Jason's death. Closet Batman has ever come to killing the Joker, shame the crash didn't do the trick. Batman vs four white martians. Again the whiners can complain all they want. "HE'S JUST A MAN!" "He's... the most dangerous man on Earth." Batman vs Deacon Blackfire. Takes down the man who took over Gotham, makes him beg for death, then lets his followers kill him. Sweet. Probably the only Batman villian that Bruce has ever stopped perminantly. Batman vs Superman. Hush fight. Oooh, purdy. Deathstroke: Deathstroke vs the Justice League. Again, don't care about the haters. Deathstroke had this rep boosting fight coming for a long time. Deathstroke vs Batman. Oooh, just brutal. Deadshot: Deadshot vs Green Arrow. Ha ha, what happens when two guys who never miss fight? This. Deadshot vs his Mom. Seriously, Deadshot systematically hunting down and killing his mother's goons was cool and creepy at the same time. Other: Batman & Superman vs half the DCU in Public Enemies. He he, this series got me back into reading comics, nuff said. Trinity vs Doomsday clones. Pfft, screw the amazons, they got owned. Just throw the big three at these slackers and watch the carnage. Sucide Squad vs Apokolips. This ruled, U.S. Black Ops vs the army of a dark god. The Wall shows Granny how it's done! Just about every fight in Infinite Crisis and lead ins.